EP0131402A2 - Méthode pour assembler un dispositif d'étanchéité pour l'huile de lubrification dans un turbocompresseur - Google Patents

Méthode pour assembler un dispositif d'étanchéité pour l'huile de lubrification dans un turbocompresseur Download PDF

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Publication number
EP0131402A2
EP0131402A2 EP84304208A EP84304208A EP0131402A2 EP 0131402 A2 EP0131402 A2 EP 0131402A2 EP 84304208 A EP84304208 A EP 84304208A EP 84304208 A EP84304208 A EP 84304208A EP 0131402 A2 EP0131402 A2 EP 0131402A2
Authority
EP
European Patent Office
Prior art keywords
retainer
sealing collar
deflector
lubricating oil
turbocharger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP84304208A
Other languages
German (de)
English (en)
Other versions
EP0131402A3 (en
EP0131402B1 (fr
Inventor
Masumi Asano
Mitsuyuki Ugajin
Kiyoshi Isogai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyota Motor Corp filed Critical Toyota Motor Corp
Publication of EP0131402A2 publication Critical patent/EP0131402A2/fr
Publication of EP0131402A3 publication Critical patent/EP0131402A3/en
Application granted granted Critical
Publication of EP0131402B1 publication Critical patent/EP0131402B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/18—Lubricating arrangements
    • F01D25/183—Sealing means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49945—Assembling or joining by driven force fit

Definitions

  • the present invention relates to a turbocharger lubricating oil sealing apparatus, and more particularly to an oil sealing apparatus which can be easily assembled.
  • a turbine wheel 2 is directly connected by a driving shaft 3 to a compressor wheel 4 within a turbocharger 1.
  • the turbine wheel 2 rotates with a pressure of an exhaust gas discharged from a combustion chamber 5
  • the rotation of the turbine wheel 2 is transmitted by the driving shaft 3 to the compressor wheel 4, thereby resulting in the rotation of the compressor wheel 4.
  • This supplies a supercharged air into the combustion chamber 5.
  • a turbocharger In general, it takes a relatively lengthy time to assemble a turbocharger. Hence, it has been requested to shorten the time necessary to assemble a turbocharger. The reason why it takes a relatively lengthy time to assemble a turbocharger, a turbocharger includes a lubricating oil sealing apparatus therein. The structure of such an oil sealing apparatus is explained hereunder.
  • the driving shaft 3 is lubricated with an oil introduced from an opening 6. After the lubricating oil lubricates the driving shaft 3 and so forth, the oil returns from an outlet opening 7 to a crank case (not shown in drawings) of an engine 8 shown in Figure 1. However, a part of the oil happens to be suctioned by a vacuum into an intake passage 9 shown in Figure 1, thereby resulting in the consumption within the combustion chamber 5 of the engine 8. Such a vacuum is generated by a Venturi effect occurred when an air flows through a restricted passage 12 defined between a compressor housing 10 and a center housing 11, shown in Figure 9.
  • a throttle valve 13 shown in Figure 1
  • a vacuum occurs in the intake passage 9 according to the time delay responding to the compressor wheel 4.
  • Such a consumption of the lubricating oil in the combustion chamber 5 is not preferable from the standpoint that the consumption of the lubricating oil causes an unusual combustion within the engine 8, the occurrence of a white smoke, and a decrease in a lubricating oil.
  • a conventional turbocharger 1 includes a lubricating oil sealing apparatus 17 as shown in Figure 9.
  • This lubricating oil sealing apparatus 17 comprises a sealing collar 14, a retainer 15, and a deflector 16.
  • the sealing collar 14 is fitted with some amount of pressure into the driving shaft 3.
  • the retainer 15 is mounted on the center housing 11.
  • the deflector 16 is mounted between the retainer 15 and a thrust bearing 19.
  • the sealing collar 14 includes a sealing ring 27 thereon.
  • the sealing collar 14 has a radial projection 18 which is a form of a disc plate. The projection 18 extends in a parallel relationship with the retainer 15 with a small clearance t 1 .
  • the projection 18 extends in a parallel relationship with the deflector 16 with a small clearance t 2 .
  • the lubricating oil sealing apparatus 17 prevents the oil from being suctioned into the intake passage 9 by the effect of a labyrinth mechanism and further by the use of the sealing ring 27.
  • the thrust bearing 19 is mounted on the driving shaft 3 in the condition shown in Figure 10.
  • a thrust collar 20 is fitted with some amount of pressure onto the driving shaft 3.
  • the deflector 16 is attached to the side wall of the thrust bearing 19.
  • the sealing collar 14 is fitted with some amount of pressure on the driving shaft 3, as shown in Figure 14.
  • the retainer 15 is mounted on the outer peripheral portion of the sealing collar 14, and the deflector 16 is held between the retainer 15 and the thrust bearing 19.
  • a stop ring 24 fastens the retainer 15 to the center housing 11.
  • the present invention was made in view of the foregoing background and to overcome the foregoing drawbacks. It is accordingly an object of this invention to provide a turbocharger lubricating oil sealing apparatus which can be assembled in a relatively short time.
  • the invention provides a lubricating oil sealing apparatus for use of a turbocharger equipped with a compressor wheel for supplying supercharged air through an intake passage, a turbine wheel driven by the force of an exhaust gas, and a driving shaft connecting said compressor wheel with said turbine wheel, having a sealing collar located between said compressor wheel and said turbine wheel, said sealing collar comprising a main portion which has a hole therein so that said driving shaft may extend therethrough and a radially extended projection having a larger outside diameter than that of said main portion, a retainer surrounding said sealing collar, and a deflector which has a hole therein so that said sealing collar may extend therethrough, said hole of said deflector having a diameter larger than the outside diameter of said sealing collar and less than the outside diameter of the radially extended projection of said sealing collar, characterized in that a resilient means is provided between an inside portion of said retainer and the outside portion of said sealing collar to secure said sealing collar to said retainer, and that said deflector is secured to said retainer.
  • Figure 2 illustrates a longitudinal cross-sectional view of a turbocharger in which a lubricating oil sealing apparatus according to the present invention is applied.
  • the lubricating oil sealing apparatus 17 comprises a sealing collar 14, a retainer 15, and a deflector 16.
  • Figure 3 illustrates an enlarged longitudinal cross-sectional view of the lubricating oil sealing apparatus 17 shown in Figure 2.
  • the sealing collar 14 has a radially extending projection 18 at outer periphery thereof, which is a form of a disc.
  • the sealing collar 14 has a first rib 25 and a second rib 26, both of which are circular in cross-section and radially extend in a parallel relationship with each other.
  • the seal ring 27 is designed to have an outside diameter Dl greater than an outside diameter D2 of the first and second ribs 25 and 26.
  • the sealing collar 14 has a hole 28 which axially extends therein, for allowing the driving shaft 3 to extend therein.
  • Figure 5 illustrates a longitudinal cross-sectional view of a retainer 15 which is employed in the apparatus of the present invention.
  • the retainer 15 has a hole 29 at center thereof, in which the driving shaft 3 axially extends.
  • An inside diameter d l of the hole 29 of the retainer 15 is designed to be slightly smaller than the outside diameter Dl of the seal ring 27 shown in Figure 3.
  • the retainer 15 has a stepped portion 33 adjacent to outer periphery thereof, on which the deflector 16 is fitted.
  • Figure 4 illustrates a longitudinal cross-sectional view of the deflector 16 which is employed in the apparatus of the present invention.
  • the deflector 16 has a form of a disc and is provided with a circular opening 30 at center thereof.
  • An inside diameter d 2 of the opening 30 is designed to be greater than the outside diameter D3 of the sealing collar 14 shown in Figure 3 and to be less than the outside diameter D4 of the projection 18.
  • the deflector 16 has a flange portion 31, which radially and obliquely extends, guides the lubricating oil returned to the outlet opening 7.
  • the outside diameter d 4 of the deflector 16 is designed to be almost same as or slightly greater than the inside diameter d 3 of the stepped portion 33 of the retainer 15 shown in Figure 5.
  • the sealing collar 14, the retainer 15, and the deflector 16 are assembled into one assembly by the following procedure. Firstly, the seal ring 27 is fitted into the groove defined between the first and second ribs 25 and 26 of the sealing collar 14. Next, while the seal ring 27 is held in the groove of the sealing collar 14, the sealing collar 14 is inserted into the hole 29 of the retainer 15, as shown in Figure 6. As the outside diameter Dl of the seal ring 27 is designed to be slightly greater than the inside diameter d l of the hole 29, the outside diameter D1 of the seal ring 27 is forced to be contracted by the distance subtracted d l from Dl. Hence, the sealing collar 14 is retained to the retainer 15 by the resilient force of the seal ring 27.
  • the projection 18 of the sealing collar 14 radially extends in a nearly parallel relationship with the retainer 15 with a short clearance t l between the projection 18 and the retainer 15.
  • the deflector 16 is press fitted into a stepped portion 33 of the retainer 15, and is secured to the stepped portion 33 with an impact force in the direction B shown in Figure 3.
  • the deflector 16 is subjected to a small amount of a plastic deformation in the direction C shown in Figure 3. This results in the deflector 16 being secured to the stepped portion 33 of the retainer 15.
  • the projection 18 of the sealing collar 14 radially extends in a nearly parallel relationship with the deflector 16, and there is provided with a short clearance t 2 between the projection 18 and the deflector 16, as shown in Figure 3. Further, there is provided the short clearance t 1 between the projection 18 and the retainer 15.
  • the lubricating oil sealing apparatus 17 prevents the oil from being leaked into the intake passage 9 owing to the labyrinth effect and the sealing effect of the seal ring 27.
  • assembled lubricating oil sealing apparatus 17 is press fitted in the driving shaft 3 of the turbocharger 1.
  • Figure 7 illustrates such a condition as the lubricating oil sealing apparatus 17 is press fitted into the driving shaft 3.
  • the lubricating oil sealing apparatus 17 is mounted to the turbocharger 1 by the way that the stop ring 24 secures the retainer 15 onto the center housing 11. Further, a compressor wheel and a compressor housing are mounted on the lubricating oil sealing apparatus shown in Figure 8, and an assembly of a turbocharger is completed.
  • the lubricating oil sealing apparatus 17 accoring to the present embodiment is assembled into one body in advance. If the assembled body is mounted on a turbocharger, the assembly of the lubricating oil sealing apparatus is completed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
EP84304208A 1983-07-08 1984-06-21 Méthode pour assembler un dispositif d'étanchéité pour l'huile de lubrification dans un turbocompresseur Expired EP0131402B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1983106636U JPS6014246U (ja) 1983-07-08 1983-07-08 タ−ボチヤ−ジヤのオイル洩れ防止装置
JP106636/83 1983-07-08

Publications (3)

Publication Number Publication Date
EP0131402A2 true EP0131402A2 (fr) 1985-01-16
EP0131402A3 EP0131402A3 (en) 1985-03-06
EP0131402B1 EP0131402B1 (fr) 1988-04-27

Family

ID=14438598

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84304208A Expired EP0131402B1 (fr) 1983-07-08 1984-06-21 Méthode pour assembler un dispositif d'étanchéité pour l'huile de lubrification dans un turbocompresseur

Country Status (4)

Country Link
US (1) US4523763A (fr)
EP (1) EP0131402B1 (fr)
JP (1) JPS6014246U (fr)
DE (1) DE3470771D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2271814A (en) * 1992-10-21 1994-04-27 Malcolm George Leavesley Turbocharger heat shield.
DE102009058068A1 (de) * 2009-12-14 2011-06-16 Bosch Mahle Turbo Systems Gmbh & Co. Kg Lagergehäuse einer Ladeeinrichtung
CN106715864A (zh) * 2014-10-03 2017-05-24 三菱重工业株式会社 增压机

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6111423A (ja) * 1984-06-28 1986-01-18 Taiho Kogyo Co Ltd タ−ボチヤ−ジヤ用非接触型シ−ル装置
JPH09264151A (ja) * 1996-03-29 1997-10-07 Aisin Seiki Co Ltd ターボチャージャのオイル漏れ防止機構
WO2000045393A2 (fr) * 1999-01-29 2000-08-03 Mpr Associates, Inc. Procedes et appareils destines a la reparation d'une colonne montante fissuree de pompe a jet dans un reacteur a eau bouillante au moyen d'une fixation d'espacement
CN101983282B (zh) * 2008-04-08 2014-11-05 株式会社Ihi 涡轮增压器
DE102010003796A1 (de) * 2010-04-09 2011-10-13 Abb Turbo Systems Ag Wellenabdichtung
US8991175B2 (en) * 2012-03-28 2015-03-31 GM Global Technology Operations LLC Control of balance drift in turbocharger rotating assembly
EP2872753B1 (fr) * 2012-07-15 2019-03-20 Garrett Transportation I Inc. Turbocompresseur avec déflecteur de lubrifiant
DE102013005167B3 (de) * 2013-03-26 2014-09-11 Borgwarner Inc. Abgasturbolader
US9771946B2 (en) 2014-08-01 2017-09-26 Caterpillar Inc. Turbocharger compressor oil deflector and method
US9638203B2 (en) * 2015-09-15 2017-05-02 Borgwarner Inc. Bearing housing
CN108884758B (zh) * 2016-03-31 2020-07-31 株式会社Ihi 增压器
GB2603074B (en) * 2019-08-28 2023-05-31 Cummins Ltd Baffle element, diffuser plate and seal system incorporating a baffle element and a diffuser plate
CN112780400B (zh) * 2021-03-04 2022-09-13 北京理工大学 航空活塞发动机高空功率恢复专用增压器
DE112021006868T5 (de) * 2021-04-23 2023-11-09 Ihi Corporation Turbolader

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1203602A (fr) * 1957-06-20 1960-01-20 United Aircraft Corp Ensemble compresseur-turbine
DE2853525A1 (de) * 1978-12-12 1980-06-26 Audi Nsu Auto Union Ag Turbolader
GB1574942A (en) * 1977-04-20 1980-09-10 Komatsu Mfg Co Ltd Centrifugal compressor combines with a turbine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2936715A (en) * 1955-11-14 1960-05-17 Thompson Ramo Wooldridge Inc Seal assembly
US2925290A (en) * 1956-05-16 1960-02-16 Garrett Corp Self-equalizing seal for a rotating shaft
US3519277A (en) * 1968-01-18 1970-07-07 Pneumo Dynamics Corp Fan seal
US4018059A (en) * 1975-04-30 1977-04-19 General Electric Company Cryogenic fluid transfer joint employing gaseous seals
US4114059A (en) * 1976-09-03 1978-09-12 Westinghouse Electric Corp. Grooved visco seal for stationary discharge chamber of water-cooled turbine generator
JPS5783632A (en) * 1980-11-12 1982-05-25 Yamaha Motor Co Ltd Bearing structure of turbo-supercharger
US4364241A (en) * 1980-12-02 1982-12-21 Mitsubishi Denki Kabushiki Kaisha Device for draining cooling liquid from rotary electric machine with liquid cooled rotor
JPS5815721A (ja) * 1981-07-22 1983-01-29 Taiho Kogyo Co Ltd タ−ボチヤ−ジヤの給油装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1203602A (fr) * 1957-06-20 1960-01-20 United Aircraft Corp Ensemble compresseur-turbine
GB1574942A (en) * 1977-04-20 1980-09-10 Komatsu Mfg Co Ltd Centrifugal compressor combines with a turbine
DE2853525A1 (de) * 1978-12-12 1980-06-26 Audi Nsu Auto Union Ag Turbolader

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2271814A (en) * 1992-10-21 1994-04-27 Malcolm George Leavesley Turbocharger heat shield.
GB2271814B (en) * 1992-10-21 1996-09-11 Malcolm George Leavesley Turbocharger apparatus
DE102009058068A1 (de) * 2009-12-14 2011-06-16 Bosch Mahle Turbo Systems Gmbh & Co. Kg Lagergehäuse einer Ladeeinrichtung
CN106715864A (zh) * 2014-10-03 2017-05-24 三菱重工业株式会社 增压机
CN106715864B (zh) * 2014-10-03 2019-07-05 三菱重工业株式会社 增压机

Also Published As

Publication number Publication date
EP0131402A3 (en) 1985-03-06
DE3470771D1 (en) 1988-06-09
US4523763A (en) 1985-06-18
EP0131402B1 (fr) 1988-04-27
JPS6014246U (ja) 1985-01-30

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